Home / 34,421.12-51,639.28-13,644.08

Finding the Fourth Proportional to 34,421.12, 51,639.28 and 13,644.08

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Solution

The fourth proportional to 34,421.12, 51,639.28 and 13,644.08 is: 20,469.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,421.12 : 51,639.28 = 13,644.08 : x
  2. Step 2: Convert to fraction form
    34,421.12/51,639.28 = 13,644.08/x
  3. Step 3: Cross multiply
    34,421.12x = 51,639.28 × 13,644.08
  4. Step 4: Simplify right side
    34,421.12x = 704,570,467.46
  5. Step 5: Solve for x
    x = 704,570,467.46/34,421.12
  6. Step 6: Final answer
    x = 20,469.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.